Theoretical Model To Predict the Diffusion Coefficients of Enzymes on Adsorption Processes Based on Hard-Core Two-Yukawa Potential

2007 ◽  
Vol 46 (23) ◽  
pp. 7410-7416 ◽  
Author(s):  
Ruth Gutiérrez ◽  
Eva M. Martín del Valle ◽  
Miguel A. Galán
Keyword(s):  
Theoretical Model ◽  
Diffusion Coefficients ◽  
Yukawa Potential ◽  
Hard Core ◽  
Adsorption Processes

How do the HSDM and Boyd’s model compare for estimating intraparticle diffusion coefficients in adsorption processes

Adsorption ◽  
2014 ◽  
Vol 20 (5-6) ◽  
pp. 737-746 ◽  
Author(s):  
Rui M. C. Viegas ◽  
Margarida Campinas ◽  
Helena Costa ◽  
Maria João Rosa
Keyword(s):  
Diffusion Coefficients ◽  
Intraparticle Diffusion ◽  
Adsorption Processes

scholarly journals ANALISIS KESTABILAN SISTEM DINAMIK PARTIKEL DALAM MEDAN POTENSIAL HARDCORE DOUBLE YUKAWA

2019 ◽  
Vol 4 (2) ◽  
pp. 70-76
Author(s):  
Herry F. Lalus ◽  
Yusniati H. Muh. Yusuf
Keyword(s):  
Dynamical System ◽  
Hamiltonian System ◽  
Potential Field ◽  
Yukawa Potential ◽  
Stable Condition ◽  
Hard Core ◽  
System Stability ◽  
The Matrix ◽  
The Stability ◽  
Double Yukawa Potential

Abstrak Paper ini mengkaji sistem dinamik partikel yang bergerak dalam pengaruh medan potensial Hardcore Double Yukawa (HCDY) [1]. Kajian ini difokuskan pada analisis kondisi stabil sistem dinamik dengan memanfaatkan sifat kestabilan linear. Massa partikel dalam sistem ini ditinjau sebagai fungsi koordinat, sehingga berbentuk lebih umum. Potensial HCDY digunakan dalam mengkonstruksi Hamiltonian sistem dan selanjutnya dipakai untuk menentukan matriks Jacobinya. Selanjutnya, nilai eigen matriks menjadi dasar menganalisis kestabilan sistem dinamik ini. Untuk sistem dengan potensial jenis ini, hanya dimungkinkan dua jenis kestabilan, yaitu saddle dan rotor. Syarat-syarat untuk kedua jenis kestabilan ini juga ditampilkan. Kata kunci: potensial Hard Core Double Yukawa; sistem dinamik; keadaan stabil Abstract This paper discusses the dynamical sistem of particle that move under the influence of the Hard Core Double Yukawa (HCDY) potential field[1]. This study focuses on analyzing the stable condition of the dynamical sistem by utilizing the nature of linear stability. The mass of particle in this system is depend on coordinate function, so its form is more general. The HCDY potential is used in constructing the Hamiltonian system and then used to determine the Jacobian matrix.Futhermore, the matrix eigenvalue is the basis for analyzing the stability of this dyanamical system. For systems with this type of potential, only two types of stability are possible, namely saddle and rotor. The conditions for both types of stability are also displayed. Keywords: Hard Core Double Yukawa potential; dynamical system; stability

scholarly journals Determination of Diffusion Coefficients from Observations on Grenade Glow Clouds

1963 ◽  
Vol 16 (4) ◽  
pp. 490 ◽  
Author(s):  
ER Johnson ◽  
KH Lloyd
Keyword(s):  
Diffusion Coefficient ◽  
Theoretical Model ◽  
Gaussian Distribution ◽  
Diffusion Coefficients ◽  
Molecular Diffusion ◽  
Particle Density ◽  
Altitude Range ◽  
Explosion Products ◽  
Thin Cloud

Glows have been observed at Woomera when grenades ejected from Skylark rockets have been detonated in the altitude range 90-170 km. Using results obtained from these glows by a special scanning photometer located on the ground, an estimate has been made of the diffusion coefficient in the region 120-160 km. The theoretical model which is used to describe the behaviour of the explosion products incorporates the assumptions of molecular diffusion, a Gaussian distribution of particle density, and an optically thin cloud. The effects of consumption of the cloud particles are included in the model.

Sign in / Sign up

Export Citation Format

Share Document